High temperature alarm system with fusible link

Details High temperature alarm system with fusible link High temperature alarm system with fusible link

1984-06-08

1986-03-11

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6108, 337407, 340691, G08B 1702

Patent

active

045757151

ABSTRACT:
First and second head portions are movably urged toward a closed position, a fusible link holding the head portions in an open position. Electrical contacts are mounted on the head portions for making electrical contact when the head portions are in the closed position to energize an electric circuit for producing an alarm signal (e.g., turning on the lights in the room and ringing the doorbell of the building) when the head portions are in the closed position.

REFERENCES:
patent: 598508 (1898-02-01), Guthrie
patent: 634491 (1900-02-01), Froment
patent: 662032 (1900-11-01), Sitts
patent: 910118 (1909-01-01), Crutchfield
patent: 2552331 (1951-05-01), Lamb
patent: 2710393 (1955-06-01), Goldberg
patent: 2740107 (1956-03-01), Sutton
patent: 3324464 (1967-06-01), Edwards et al.
patent: 4264892 (1981-04-01), Zonn

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